Fluid charging and discharging valve for concrete mixers



Feb. 28, 1928.

- s. 'r. ALLEN FLUID CHARGING AND DISCHARGING VALVE FOR GOflCRE-TE MIXERS Filed April 9. 1924 3 Sheets-Sheet 1 INVENTOR A'i TORNEY Feb. 28, 1928.

G. T. ALLEN FLUID CHARGING AND DISCHARGING VALVE FOR CONCRETE MIXERS Filed April 9. 1,924 3 Sheets-Sheet 2 7 lNVENTOR 6 BY 7 A'TTORNEY Feb. 28, I928.

G. T. ALLEN FLUID CHARGING AND DISCHARGING VALVE FOR CONCRETE MIXERS Filed April 9. 1924 3 Sheets-Sheet 3 INVENTOR lvrToFmsv' Patented Feb. 192 8" GEORGE .T. ALLEN; or. NEW1Y0RK, 17;. Yr, nssienon T inan'soivrn concnnrn Macaw ERY COMPANY, OF PLAIN'EIELD; NEYVI'JERSEY,

A:,CORPORATIOI\T OF NEWJ'ERSEY;

FLUID CHARGING AND 1 niscnaneine. VALVE Eon concniirn MIXERS.

Application filed .Aprii 9,

This invention relates to'a charging and discharging valve and the operative control of the same and itsnovelty consists in the adaptation and arrangement of parts i as will be hereinafter more fully pointed out,

Great diliiculty has been experienced inthe handling ofthe water supply to concrete mixers particularly because thewater often-7' contains sand or. other hard substances: which soon destroy the hard seat valves.

My device overcomes this diificulty and provides a valve which has a packingwhich is easily removable and furnishes a valve which stands up under the difl'icult opera? tive conditions and also is so controlled that it can automatically supply the water requiredfor the mixing operation cooperating.

with the movement of themixing machine or be operated manually when" so desired.

Referring to the drawings, Figure 1 is a front view of my valve showing the connections' broken away for convenience in illustration. Figure '2 is an end view of my valve looking at Figure 1 .from the right hand side and showing the broken connection to thewater tankin a different 'posi- Figure 3 is a vertical section of the valve shown in Figure 1; Figure 4 is a perspective ofmy valve mounted in a concretemixing machine and showingthe co necting and operative parts.

In the drawings 5 is a valve having a cylindrical chamber 6 and said cylindrical chamber 6 has openings 7 therein; The

a cylindrical chamber 6 has anextension cylindrical chamber 8 and a water ii'eed' pipe 9 enters the valve 5 through said cylindrical chamber 6 so as to divide said chamber 6 from the extension chamber 8. Ahead 10 is rigidly secured to'the valve 5 by means of the'usual bolts and nuts at 11 so that it can be readily-removed, and a plungerrod 12 is mounted in said head 10 v passingthrough the same at 13. A valve member; 14

having a leather or othersuitable packing 15 is adapted to seat in a seat 16 in the base of the pipe 9 and is mounted onthe plunger rod 12by means of a threading 1 9 on said plunger rod. '11" second valve 17 having a suitable packing-- 18 is also mounted on the inner end of the plunger rod 12' on said threading 19 and said valve 17 isadapted to 1924.; SeriaLNo. 705,218. or

seat the packing 18 in a valve seat 20 in the base of the pipe 9 oppositelthevalve seat l6. At 20 and 16 there are openings through into the pipe 9thereby permitting the Water I .-'kind.' The valve 5 has a third chamber 23;

at the inner end of the plunger rod 121cm;

ing to apip'e 24'which'is rigidly connected:

thereto at 25 and leads to a mixing drum 48 of the concrete mixer {of usual" construction partially ShOWlPllGI'Gll'l. A second head 26" is secured to the portion'of' chamber-23cp+ posite' the end of the cylindrical-chamber 6 by means of the usual bolts and nuts at '27 so that it can be readily removedwhen desired. The cylindricalh chamber 6 drains intoa base chamber 28 which has a drainplug 29 andthe pipe 9also has'a dr'ain'plug at its base,.{ i 1 v a lntFigure '4 is shown in part, the rest being broken away for convenience in illustration, the portion of'a concrete mixing machine involved in my device in which 31 is a" loaderbucket shaft',-the loader bucket being shown at 31", on the outer endfof which shaft is rigidly secured arocker arm 32-to which is 'oscillatablymounted at'33,lifting rod 134 oscillatably connected at "35 to a rocker arm 86 'Whichis rigidly secured at the other end thereof to a rocker shaft 37 AU shaped arm 38 is rigidly secured to the opposite end of the rocker shaft 37 and a right angle hook member- 390i a horizontal rod 40 is ada'ptedto rest in the U shapedsvertical arm38: Thelhorizontal'rodt40'liasa erated manually anda pivot arm 42 isiplvoted at 43 to-the frame of the mixing mahandle 41 at itsouter end adaptedtovbe Qpf chine. The pivot arm 42 is oscillatably connected at 44 to'the horizontal rod 40'and the opposite end of the pivot arm 42 is oscillatably connected at 45' to a connecting r arm 46 which is oscillatably connected at 47 to the plunger rod 12 rofthe valve'5. The. mixing drum 48 of usual construction is also shown in Figure 4 and into whichijthe water from the delivery pipe24 is adapted to empty; The connection of the pivot arm 42'at 44 is such that the horizontal rod 40 raises the rocker V valve 17 is pushed shaped arm 38 therewith so as can be turned by means of the handle 41v so as to lift the right angle hooked end 39 out of the U-shaped vertical arm 38 so that said rod 40 can'be operated manually to con trol the valve 5.

In the usual operation of my device as the feed hopper 31 is lowered to receive its load the shaft 31 011 which it is mounted, is rotated so as to lift the rocker arm 32 thereby pushing up the lifting rod 34 which arm 36 so that the rocker shaft 137 is rotated thereby turning the U- to pull the horizontal rod 40 which'draws the pivot arm 42 at the end 44 where itis secured to therod'40 thereby pushing the connecting arm 46 and the plunger rod 12 whereby the to theposition shown in Figure 3 thereby permitting the water from the supplypipe 9 to flow into the chamber 6 and through the pipe 21 into the by through the rocker arm 36 rotatingthe rocker shaft 37 in the opposite direction whereby the upright U-shaped arm 38 is thrown in the .opposite direction thereby the waterfrom the'tank .22 to flow scribed then the rod '40 and thehooked end 39 can be turned out of engagement with the U-shaped arm 38 by the operator taking hold of the handle 41 and pulling on said handle 41 thereby seating said valve 17 andthe valve member 18 in the valve seat 20 wherebythe pipe 9 and the water supply is cut d and the water from the tank 22 is permitted to fiowthrough the pipe 21 and chamber 6 into chamber 23 thence into pipe 24' and into the mixing drum 48 until sufli- [cient water has run to supply the require ments When the operator can again push in on the handle 41 thereby restoring rod 40 to its normal position with the hooked end 3.9 rest ng in the U-shaped arm 38 and thereby restoring the valve 17 to the position shown in Figure 3 and permitting the Water to flow fromithe supply through the valve 20, chamber 6 and pipe 21 into thetank 22.

Whenever the valve packings or 18 reuire renewal this can be readily accomplished by the removal of the head 10 or the head 26 the removal of the nuts and bolts tank 22. As the feed hopper is raised to dump the load into the mixing drum 48 shaft 31 is rotated so as to pull down on the rod 34 there- IHBZLDS whereupon the valves accessible. I j r v I claim: I v p 1. In a concrete mixing machine, the combination of a water.supply'conduit, a valve having means for controlling a water supply through said conduit, a water supply tank, I means for controlling a supply of water thereto, a water delivery conduit leading from said tank, means for controlling the delivery of water therefrom, a. feeding device for solid materialand automatic means for operating said lastwater controlling means bythe operation of said feeding device, said automatic operating means comprising positive connections between the controlling 14' and 17 are readily means and said feeding device whereby the.

former is adapted to be moved by the latter in two directions andis normally held thereby against independent movement.

2. In a concrete mixingjmachine 'compris-' ing a mixing drum, a tank and automatio for controlling, a supply of water thereto, said automatic means also control-j ling the supply of water from said tank to the said drum, a feeding device operating; said automatic means, and positiveoperat-f ing' connections between said automatic means and said feedingdevice. V

3." In a concrete mixing machine comprising a mixing drum,a tank, automatic means for controlling'the supply of water thereto, said automatic 'means also controlling the, supply of water from said tank to said drum, means adapted to be actuated'by a feeding hopper, operative connections between said last named means andsaid automatic means whereby the latter is adapted tobe controlled at alltimes by theformer, and means formanually operating said controlling means. v

4. Ina concrete mixing machine compris ing a mixing drum, a tank, automatic means for controlling. the supply of water thereto, m

said automatic means also controlling the supply of water from said tank to; said drum, means forcharging the mixing drum with solid material, operative connections between said'au tomatic means and said 1 5 charging means, means for manually operating said controlling means, and meansfor disconnecting said automatic means without disconnecting said manuallyj operating means.

' v 5. In a machineof the character described, a tank provided with an opening through which it is adapted to be charged and discharged, charging and discharging ducts communicating therewith, a valve 'con- 12:; structed and arrangedto be moved to alternately open and close the charging and dis-1 charging ducts, a mixing drumwith which said discharge duct communicates, 'means for charging said mixing drum with solid 13c materials to be mixed With liquid from the and return movements of said charging means, and operative connections between said member and sald valve constructed and arranged to automatically move sald valve to discharge duct opening position on charging movement, and to closing position and charging duct opening posltion'on return movement.

6. In the device I specified in claim- '5] means for manually operating, said valve and for disconnecting the same from said v automatic operating means, said manually 15 operating means being operatively connected While the automatic means are connected.

' Witness my hand this 3d day of April, 1924, at Dunellen county of Middle'seX, State of New Jersey.

GEORGE T. ALLEN. 

